Roof window

Abstract

A skylight has a sash, a casement and [spring-loaded⃡ carrier arms which are mounted at one end to the casement and at the other end on a pivot bearing on the sash side rail. The sash has spindles cooperating with a U-shaped runner on the side member of the casement. A cover plate borders the channel of the runner and overlaps the spindles when the sash is in the swinging position. When the sash is in the closed position [and the swinging position], the spindles is outside the working range of the cover plate. When the sash is opened and the carrier arm is coupled thereto, it tilts on the pivot bearing. When opened with the sash uncoupled from the carrier arms, the spindle move in the grooves of the runner toward the lower edge of the casement, and the pivot bearing on the casement is lifted off and the sash swings open. The spindles are positioned on the side rail of the sash and move longitudinally when they are seated in individual settings by movement of the handle on the sash cross member.

Having thus described the invention, what is claimed is: 
     
       1. A skylight comprising: (a) a sash having side rails and upper and lower cross members;   (b) a casement having side members and upper and lower cross members;   (c) carrier arms mounting the sash on the casement, said carrier arms being mounted at one end on a hinge bearing attached to the upper end of said casement and at the other end in the center of said sash on pivot bearings on said side rails of said sash, said sash having spindles on each side rail between pivot bearings and its upper cross member, said spindles being slidable in a runner that is U-shaped in cross section and is disposed on said side member of said casement;   (d) a cover plate on said sash and extending over a groove in said runner and over said spindles when said sash is in the pivoting position and, when said sash is in the closed position and the swinging position, the spindle is outwardly of the upper end of said cover plate; and   (e) a handle (13) attached to said lower cross member of said sash when said sash is opened and said carrier arms are coupled with said sash, said sash tilting on the hinged bearings and, when opened with said sash uncoupled from said carrier arms, said spindles move in said grooves of said runner toward the lower cross member of said casement and said pivot bearing on the sash side of said casement is lifted off and said sash swings open, said spindles being positioned on said side rail of said sash and movable longitudinally when said spindles are seated in individual settings by movement of said handle.   
     
     
       2. A skylight according to claim 1 wherein said handle is attached to the lower cross member of said sash and activates a positioning gear on said cross member, and drive rods mounted on the side rails of said sash hold a locking element which cooperates with a closing element placed on one of said side members of said casement and/or with a locking element for coupling or uncoupling said sash from said carrier arms near said hinged bearings on said casement, said locking element comprising a snap on the free end of said drive rods, said drive rods also being connected to said spindles. 
     
     
       3. A skylight according to claim 1 wherein said spindle is attached to a flange which is mounted in an undercut guide groove of a base plate set into said side rail of said sash and disposed inwardly of said drive rod, and said base plate has a longitudinal boss which holds a catch for overlapping said drive rod in the area where said drive rod is connected to said spindle. 
     
     
       4. A skylight according to claim 1 wherein said cover plate of said groove of said runner ends before the upper end of said groove to provide an opening into the area of said groove in which said spindle slides in the swinging position of said sash; wherein a slide is mounted on said cover plate and by the action of a pressure spring projects beyond said groove opening adjacent the area of setting of said spindles in the hinged position of said sash; and wherein the projecting end of said slide on the top side away from said groove has an inclined surface and the bottom surface is arranged parallel to said guide surface of said cover plate for said spindles. 
     
     
       5. A skylight according to claim 4 wherein the surface extending from the bottom surface to the inclined surface of said slide is wedge shaped. 
     
     
       6. A skylight according to claim 4 wherein said slide is mounted in a housing molded on said runner, and wherein said runner and said slide are injection-molded plastic parts.